Sunday, August 23, 2015

Save the planet, skip the salad

Tamar Haspel writes in the Washington Post that salad is overrated, and we need to rethink it.
Salad vegetables are pitifully low in nutrition. The biggest thing wrong with salads is lettuce, and the biggest thing wrong with lettuce is that it’s a leafy-green waste of resources.

...One of the people I heard from about nutrition is organic consultant Charles Benbrook. He and colleague Donald Davis developed a nutrient quality index — a way to rate foods based on how much of 27 nutrients they contain per 100 calories. Four of the five lowest-ranking foods (by serving size) are salad ingredients: cucumbers, radishes, lettuce and celery. (The fifth is eggplant.)

Those foods’ nutritional profile can be partly explained by one simple fact: They’re almost all water. Although water figures prominently in just about every vegetable (the sweet potato, one of the least watery, is 77 percent), those four salad vegetables top the list at 95 to 97 percent water. A head of iceberg lettuce has the same water content as a bottle of Evian (1-liter size: 96 percent water, 4 percent bottle) and is only marginally more nutritious.

The corollary to the nutrition problem is the expense problem. The makings of a green salad — say, a head of lettuce, a cucumber and a bunch of radishes — cost about $3 at my supermarket. For that, I could buy more than two pounds of broccoli, sweet potatoes or just about any frozen vegetable going, any of which would make for a much more nutritious side dish to my roast chicken.

When we switch to vegetables that are twice as nutritious — like those collards or tomatoes or green beans — not only do we free up half the acres now growing lettuce, we cut back on the fossil fuels and other resources needed for transport and storage.

Save the planet, skip the salad.

... Salad has unfortunate repercussions in our food supply. Lettuce has a couple of No. 1 unenviable rankings in the food world. For starters, it’s the top source of food waste, vegetable division, becoming more than 1 billion pounds of uneaten salad every year. But it’s also the chief culprit for foodborne illnesses. According to the Centers for Disease Control, green leafies accounted for 22 percent of all food-borne illnesses from 1998-2008.

To be fair, “leafy vegetables,” the CDC category, also includes cabbage, spinach and other kinds of greens, but the reason the category dominates is that the greens are often eaten raw. As in salad.
Read more here.

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